Classifications

• • E—FIXED CONSTRUCTIONS
  • E03—WATER SUPPLY; SEWERAGE
  • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
  • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
  • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
  • E03C1/26—Object-catching inserts or similar devices for waste pipes or outlets
• • E—FIXED CONSTRUCTIONS
  • E03—WATER SUPPLY; SEWERAGE
  • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
  • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
  • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
  • E03C1/26—Object-catching inserts or similar devices for waste pipes or outlets
  • E03C1/264—Separate sieves or similar object-catching inserts
• • E—FIXED CONSTRUCTIONS
  • E03—WATER SUPPLY; SEWERAGE
  • E03F—SEWERS; CESSPOOLS
  • E03F5/00—Sewerage structures
  • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
  • E03F5/06—Gully gratings

Definitions

• the present invention relates to debris traps which are intended for use during construction of buildings and to methods of installing pipework in buildings.
• the present invention provides a debris trap including: a housing, the housing including an inlet and an outlet and a fluid flow passage extending from the inlet to the outlet; the housing further including an inspection opening and an inspection cover which is removable to allow access to the fluid flow passage; a debris trapping device which is arranged to lie across the fluid flow passage; the debris trapping device may be introduced to, or withdrawn from, the housing through the inspection opening.
• the inspection cover may include a transparent portion.
• the debris trap may include a fluid bypass pathway which allows fluid to bypass the debris trapping device.
• the debris trapping device may define at least a portion of the fluid bypass pathway.
• the debris trapping device may include a stem portion which cooperates with the housing to define the fluid bypass pathway.
• the debris trapping device may include a handle portion.
• the handle portion may locate against the inner face of the inspection cover.
• the present invention provides a debris trapping device including: a debris trapping portion which is arranged to lie across a fluid flow passage, the debris trapping portion including apertures to allow fluid to flow through the device; a handle portion to allow the device to be grasped to introduce or remove the device from the passage.
• the present invention provides a method of installing pipework in a building including the steps of: installing one or more debris trapping devices in the pipework during construction of the pipework; and removing the one or more debris trapping devices after the construction of the pipework is completed.
• Figure 1 is a side cross sectional view of a debris trap according to an embodiment of the invention.
• Figure 2 is a front view of the debris trap of figure 1;
• Figure 3 is a top view of the debris trap of figure 1 ;
• Figure 4 is a perspective view of the grate of the debris trap of figure 1;
• Figure 5 is a top view of the grate of figure 4.
• Figure 6 is a side view of the grate of figure 1;
• Figure 7 illustrates the use of debris traps according to figure 1 during the construction of a multi-storey building
• Figure 8 shows an alternative embodiment of a grate
• Figure 9 is a cross sectional view of a debris trap incorporating the grate of figure 8.
• Figure 10 is a front view of the debris trap of figure 9.
• a debris trap 10 including a housing which is generally in the form of a pipe DWV Boss Junction/Inspection Tee 20 and includes an inlet 22, an outlet 24 and an inspection opening 26.
• the housing 20 is hollow to provide a fluid flow passage extending from the inlet 22 to the outlet 24, and also joining with the inspection opening 26.
• Each of the inlet 22 and outlet 24 are provided with external threaded portions to allow removable watertight fitting to adjacent pipework.
• a debris trapping device in the form of a removable grate 30 is positioned inside the housing 20 and extends across the fluid flow passage.
• An inspection cover 40 is screw fitted to the inspection opening 26.
• the grate 30 may be removed from, and inserted into, the housing through the inspection opening 26 when the inspection cover 40 is removed.
• the grate 30 includes two bars 34 which define apertures 32 in the grate.
• Grate 30 also includes a handle portion 36 which allows the grate to be grasped and manipulated. In use, fluid can pass through the apertures 32 in the grate. Debris which is larger than the apertures is trapped by the bars 34 of the grate.
• the bars 34 of the grate are angled upwardly by approximately 20 degrees.
• the outer face 35 of the grate has a cylindrical profile which is also angled in a similar fashion to the bars 34 so that the outer face 35 of the grate 30 conforms to the cylindrical walls of the inside of the housing.
• the grate 30 is retained in position in the housing by way of recess 38 which sits over a lip in the housing.
• the outside face of the handle portion lies against the inside face of the inspection cover 40 which also serves to retain the grate 30 in position.
• the angle of the bars 34 of the grate 30 assists in guiding any trapped debris into the space 50 behind the inspection cover 40.
• the inspection cover includes a transparent portion 42 which allows a visual inspection to be made to determine if any debris is in the debris trap. If so, debris can be removed by removing the inspection cover 40.
• housing 20 includes a fluid bypass pathway 60 with an inlet 62 and an outlet 64. This allows fluid to bypass the grate 30 in the event that the grate becomes completely blocked with debris.
• Trenches are dug into the ground to place the pipes 70 that connect to all the waste pipes in the structure.
• a riser 71 (PVC pipe sized according to the specifications) is placed through the formwork rising approximately 450mm from the floor.
• the floor 72 is poured and cured.
• a debris trap 10 is fixed to the riser 71.
• Timber formwork is constructed for more floors, (73-74), and a fire collar 80 is installed into the formwork where the pipes are to go through the new floors and the concrete is poured; incorporating the fire collar 80 (cast into the concrete).
• a butt piece 82 is placed into each collar and a debris trap 10 is fixed in place.
• Rubbish/debris can enter the pipes from all openings throughout the building site and it will be prevented from entering the pipes 70 by the grates 30 provided in each debris trap 10.
• Grate 30 may be used with a housing in the form of a conventional pipe DWV
• FIG. 8 A second embodiment of a debris trap will now be described with reference to figures 8 to 10 which utilises a conventional pipe DWV Boss Junction/Inspection Tee with a modified form of grate whereby a fluid bypass pathway is provided.
• identical features to those seen in the first embodiment are denoted with the same reference numerals.
• a second embodiment of a grate 130 is shown which is intended for use with a housing 120 in the form of a conventional pipe DWV Boss Junction/Inspection Tee.
• Grate 130 differs to grate 30 by the provision of an upstanding stem 132.
• Grate 130 is formed by moulding in one piece.
• Stem 132 is hollow and acts as a fluid bypass which allows water to flow through the trap when the grate 130 has clogged with debris.
• a debris trap 100 is shown which comprises a housing 120 in the form of a conventional pipe DWV Boss Junction/Inspection Tee and grate 130.
• An inspection cover 40 with a transparent portion 42 retains the grate 130 inside housing 120 in the same manner as for the first described embodiment.
• the edges of stem 132 are flush with the inside surface of housing 120 and cooperate with the housing to form a fluid bypass pathway 160 which includes an inlet 162 located above the bars 34 of grate 130 and an outlet 164 located below the bars 34 of grate 130.
• the fluid bypass pathway 160 allows fluid to bypass the grate 30 in the event that the grate becomes completely blocked with debris.
• the debris trap 100 operates in the same manner as debris trap 10. Its main advantage is that is allows use of a conventional pipe DWV Boss Junction/Inspection Tee whilst still providing a fluid bypass pathway.
• Embodiments of the invention have application to both stormwater and wastewater pipes.
• Components of the debris trap may be formed by injection moulding from PVC or similar plastics.
• the grate described above included two bars and three apertures.
• the number of bars and apertures and the shape and size of the apertures may be varied in other embodiments.
• Different embodiments of the invention can be sized to suit pipe installations of various diameters.

Landscapes

• Engineering & Computer Science (AREA)
• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Hydrology & Water Resources (AREA)
• Public Health (AREA)
• Water Supply & Treatment (AREA)
• Environmental & Geological Engineering (AREA)
• Sink And Installation For Waste Water (AREA)
• Sewage (AREA)
• Duct Arrangements (AREA)

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Publications (1)

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Family Applications (1)

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Citations (7)

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• 2015
  • 2015-06-17 ES ES15811069T patent/ES2830276T3/es active Active
  • 2015-06-17 AU AU2015281789A patent/AU2015281789B2/en active Active
  • 2015-06-17 US US15/320,018 patent/US10435875B2/en active Active
  • 2015-06-17 CN CN201580034106.6A patent/CN106687651B/zh active Active
  • 2015-06-17 WO PCT/AU2015/050332 patent/WO2015196248A1/en active Application Filing
  • 2015-06-17 EP EP15811069.2A patent/EP3158144B1/en active Active

Patent Citations (7)

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